package com.heima.wemedia.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.file.service.FileStorageService;
import com.heima.model.common.dtos.PageResponseResult;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmMaterialDto;
import com.heima.model.wemedia.pojos.WmMaterial;
import com.heima.wemedia.mapper.WmMaterialMapper;
import com.heima.wemedia.service.WmMaterialService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;
import thread.WmThreadLocalUtil;

import java.io.IOException;
import java.util.Date;
import java.util.UUID;

/**
 * @Author: xsz
 * @DateTime: 2024/1/7 0:57
 **/

@Slf4j
@Service
@Transactional
public class WmMaterialServiceImpl extends ServiceImpl<WmMaterialMapper, WmMaterial> implements WmMaterialService {

    @Autowired
    private FileStorageService fileStorageService;


    /**
     * 图片上传
     * @param multipartFile springmvc
     * @return ResponseResult
     */
    @Override
    public ResponseResult uploadPictures(MultipartFile multipartFile) {
        //检查参数
        if(multipartFile == null || multipartFile.getSize() == 0){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //上传图片到minio
        //uuid作为上传后的图片的名字
        String fileName =  UUID.randomUUID().toString().replace("-","");
        //aa.jpg 提取后缀名和filename形成完整的图片名称
        String originalFileName = multipartFile.getOriginalFilename();
        String postfix = originalFileName.substring(originalFileName.lastIndexOf("."));
        String fileId = null;
        try {
            fileId = fileStorageService.uploadImgFile("",fileName+postfix,multipartFile.getInputStream());
            log.info("上传图片到minio中，fileId：{}",fileId);
        } catch (IOException e) {
            e.printStackTrace();
            log.error("WmMaterialServiceImpl-上传文件失败");
        }

        //保存到数据库
        WmMaterial wmMaterial = new WmMaterial();
        wmMaterial.setUserId(WmThreadLocalUtil.getUser().getId());
        wmMaterial.setUrl(fileId);
        wmMaterial.setIsCollection((short)0);
        wmMaterial.setType((short) 0);
        wmMaterial.setCreatedTime(new Date());
        save(wmMaterial);

        //返回结果
        return ResponseResult.okResult(wmMaterial);
    }



    @Override
    public ResponseResult findList(WmMaterialDto wmMaterialDto) {
        //检查参数
        wmMaterialDto.checkParam();

        //分页查询
        IPage page = new Page(wmMaterialDto.getPage(),wmMaterialDto.getSize());
        LambdaQueryWrapper<WmMaterial> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        //查看是否收藏
        if(wmMaterialDto.getIsCollection() != null && wmMaterialDto.getIsCollection()==1){
            lambdaQueryWrapper.eq(WmMaterial::getIsCollection,wmMaterialDto.getIsCollection());
        }

        //按照用户查询
        lambdaQueryWrapper.eq(WmMaterial::getUserId,WmThreadLocalUtil.getUser().getId());

        //按照时间排序
        lambdaQueryWrapper.orderByDesc(WmMaterial::getCreatedTime);

        page = page(page,lambdaQueryWrapper);

        ResponseResult responseResult =  new PageResponseResult(wmMaterialDto.getPage(),wmMaterialDto.getSize(),(int)page.getTotal());
        responseResult.setData(page.getRecords());

        return responseResult;


    }
}


